Summer Intern

About CGC

CGC is a nonprofit investment firm that finances and originates clean energy, water, and resilient infrastructure projects to accelerate clean air, clean water, and affordable energy for communities across America.

We collaborate with the public and private sectorsto bridge financing gaps and mobilize private capital into projects that deliver measurable economic and environmental impact ry dollar we invest is structured to multiply, generating durable returns for people, markets, and the environment.

Over the past decade, CGC has demonstrated the power of public-private investment by helping catalyze economic accelerators nationwide and mobilizing billions of dollars toward affordable clean energy and resilient infrastructure. Our model fills market gaps, unlocks private capital, and proves that economic growth and environmental progress can advance together.

A Career at CGC

A career at the CGC is grounded in impact. Our six core values guide how we invest and how we work together.

Innovation drives creative solutions and continuous improvement.
Mission-Driven Focus keeps long-term impact at the center of every decision.
Partnership shapes how we mobilize capital and build trust-based relationships.
Accountability defines our stewardship and commitment to results.
Collaboration strengthens cross-functional teamwork and shared responsibility.
Transparency ensures open communication and integrity in how we operate.

Our culture is fast-paced, rigorous, and purpose-driven. If you are motivated by solving complex challenges, building new markets, and delivering measurable impact within a collaborative team, CGC offers a platform to do that work with purpose.

Finance & Operations Support

Location: Washington, DC | New York, NY | Boulder, CO | Walnut Creek, CA
Duration: July – August, 8–12 weeks
Compensation: $25.00 – $45.00 per hour, based on experience and qualifications
Final date to receive applications: Open until filled

The CGC Summer Internship Program is a structured, mission-driven experience designed to provide meaningful, hands‑on exposure to CGC’s finance, accounting, and operational work. Interns will support one of CGC’s divisions based on organizational priorities and business needs.

This internship provides an opportunity to contribute to real projects, gain exposure to cross-functional collaboration, and support work connected to CGC’s clean energy, infrastructure finance, and operations priorities.

The program is designed to deliver:

• Clearly defined scope of work and responsibilities
• Direct supervision and mentorship
• Exposure to cross-functional collaboration
• Professional development opportunities
• A capstone presentation to senior leadership at the conclusion of the program

Exceptional interns may be considered for future employment opportunities aligned with organizational needs.

Responsibilities will vary by division but may include:

• Supporting active projects aligned with CGC’s clean energy and infrastructure investment initiatives
• Conducting research, financial analysis, modeling, data analysis, or operational analysis
• Assisting with preparation of reports, presentations, internal documentation, and process materials
• Participating in cross-functional meetings and strategic discussions
• Contributing to deliverables tied to defined learning objectives
• Supporting finance, accounting, and operational projects as needed

For interns supporting the Finance and Operations Division , responsibilities may include:

• Assisting with tying out financial statements and footnotes for the FY 2025 audit, including footing and cross-footing documents and confirming disclosed amounts match the trial balance
• Auditing the contract database and reconciling information against vendor invoicing
• Assisting with balance sheet reconciliations during the month-end close process
• Reconciling timecards within payroll system reports and noting any differences
• Auditing grant draw files against accounting records
• Supporting the Controller with documenting processes and procedures related to managing investments from an internal control and accounting perspective
• Reviewing travel…